}
assert(!VTs.empty() && "RegisterClass must contain at least one ValueType!");
- Elements = R->getValueAsListOfDefs("MemberList");
- for (unsigned i = 0, e = Elements.size(); i != e; ++i)
- Members.insert(RegBank.getReg(Elements[i]));
+ Elements = RegBank.getSets().expand(R);
+ for (unsigned i = 0, e = Elements->size(); i != e; ++i)
+ Members.insert(RegBank.getReg((*Elements)[i]));
// SubRegClasses is a list<dag> containing (RC, subregindex, ...) dags.
ListInit *SRC = R->getValueAsListInit("SubRegClasses");
//===----------------------------------------------------------------------===//
CodeGenRegBank::CodeGenRegBank(RecordKeeper &Records) : Records(Records) {
+ // Configure register Sets to understand register classes.
+ Sets.addFieldExpander("RegisterClass", "MemberList");
+
// Read in the user-defined (named) sub-register indices.
// More indices will be synthesized later.
SubRegIndices = Records.getAllDerivedDefinitions("SubRegIndex");
#define CODEGEN_REGISTERS_H
#include "Record.h"
+#include "SetTheory.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
class CodeGenRegisterClass {
CodeGenRegister::Set Members;
- std::vector<Record*> Elements;
+ const std::vector<Record*> *Elements;
public:
Record *TheDef;
std::string Namespace;
// Returns an ordered list of class members.
// The order of registers is the same as in the .td file.
ArrayRef<Record*> getOrder() const {
- return Elements;
+ return *Elements;
}
CodeGenRegisterClass(CodeGenRegBank&, Record *R);
// them.
class CodeGenRegBank {
RecordKeeper &Records;
+ SetTheory Sets;
+
std::vector<Record*> SubRegIndices;
unsigned NumNamedIndices;
std::vector<CodeGenRegister> Registers;
public:
CodeGenRegBank(RecordKeeper&);
+ SetTheory &getSets() { return Sets; }
+
// Sub-register indices. The first NumNamedIndices are defined by the user
// in the .td files. The rest are synthesized such that all sub-registers
// have a unique name.